I've spent the last few hours trying to figure out why my light fixture wouldn't turn on and I finally threw in the towel. So I just bought a home that has 2 adjoining light fixtures that are controlled by a switch. Thinking that it was the switch that was causing an open circuit, I replaced it but the lights still would not turn on. I've tried everything from using new bulbs to testing the sockets with a voltage tester. There is a voltage detected, but no light. Could the circuit be incorrect? I've never seen a 9 wire junction box before, only 3, with one hot, one neutral and one ground. Any advice on this would be appreciated.